35 Ill. Adm. Code 406.207
Control of Discharge Waters
Section 406
Section 406.207Â Control of
Discharge Waters
The Agency must consider the following
practices to determine whether an operator is controlling and treating waters
containing elevated levels of total dissolved solids, chloride, or sulfate discharged
from the site:
a)Â Â Â Â Â Â Â Â Regulating discharges when other control methods are
insufficient and chemical treatment is economically unfeasible, including:
1)Â Â Â Â Â Â Â Â Regulating the flow of discharges high in total dissolved
solids according to fluctuating or intermittent stream flows so that the total
dissolved solids concentration remains within established water quality
standards; or
2)Â Â Â Â Â Â Â Â Regulating the flow or fluctuation of receiving streams by
timely discharge of water from existing impoundments that have suitable
discharge control structures.
b)Â Â Â Â Â Â Â Â Rerouting over economically feasible distances, involving collecting
discharges and conveying them to more suitable discharge points, such as large
holding ponds located adjacent to more suitable receiving streams where
dilution or water quality is better.